Clinical trials: Ocular Pathologies
Pituitary Adenoma, Visual Impairment
Clinical Study of Structural and Functional Evaluation of the Visual Pathway
Sellar area tumors such as pituitary adenoma, craniopharyngioma and meningioma, etc, commonly lead to visual impairment symptoms.
- Conditions
- Pituitary Adenoma, Visual Impairment, Sellar Tumor, Neuroimaging
- Trial name
- NCT03591315
- Testing
- resting state fMRI, visual tasking state fMRI, diffusion tensor imaging
- Where
- China
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Xiangya Hospital of Central South University
Diabete Mellitus, Retina Vein Occlusion
Serum Cholinesterases, Paraoxonase, and Cardiovascular Risk After Intravitreal Bevacizumab
Bevacizumab, an anti-VEGF (vascular endothelial growth factor) agent used in the treatment of diabetic retinopathy and macular edema associated with retinal vein occlusion, is commonly administered in ophthalmology clinics…
- Conditions
- Diabete Mellitus, Retina Vein Occlusion, Age Macular Degeneration
- Trial name
- NCT07550777
- Testing
- blood test
- Where
- Turkey (Türkiye)
- Volunteers
- 180 people, healthy volunteers welcome
- Sponsor
- Ataturk University
Diabetic Retinopathy, Neurodegeneration
Glycemic Control and Retinal Microvascular Changes
The goal of this prospective, observational study is to compare in the association of glycemic control and retinal microvascular changes in patients with type 2 diabetes mellitus (T2DM) without diabetic retinopathy (DR).
- Conditions
- Diabetic Retinopathy, Neurodegeneration, Blood Sugar; High
- Trial name
- NCT06150495
- Where
- South Korea
- Volunteers
- 259 people, healthy volunteers welcome
- Sponsor
- Seoul National University Hospital
Neck Pain, Visual Disturbances
Correlation Between Neck Pain and Visual Disturbances in Smartphone Users
the goal of this study is to Investigate the correlation between neck pain and visual disturbances in smartphone users.
- Trial name
- NCT06446700
- Testing
- neck disability index and visual functional questionnaire
- Where
- Egypt
- Volunteers
- 141 people, healthy volunteers welcome
- Sponsor
- Cairo University
Atypical Parkinsonism
Epidemiology and Pathophysiology of Parkinsonism in the Caribbeans
The primary aim of this study is to estimate the frequency and to characterize clinically atypical parkinsonism in the French West Indies and Guyana.
- Trial name
- CAP (NCT03368300)
- Testing
- Clinical and biological exam
- Where
- 2 sites in French Guiana, Martinique
- Volunteers
- 550 people, healthy volunteers welcome
- Sponsor
- Centre Hospitalier Universitaire de la Guadeloupe
Emergence Delirium, Strabismus
The Occurrence of Emergence Agitation in Pediatric Strabismus Surgery
The present trial conducted to demonstrate the administration of sugammadex as reversal of neuromuscular blockade agent reduces the incidence of emergence agitation (EA) comparing to neostigmine
- Conditions
- Emergence Delirium, Strabismus, Pediatric ALL
- Trial name
- NCT06035757
- Testing
- Bridion 200 MG in 2 ML Injection, Pyridostigmine Bromide 5 MG/ML
- Where
- South Korea
- Volunteers
- 76 people, healthy volunteers welcome
- Sponsor
- Konkuk University Medical Center
Age-related Macular Degeneration, Diabetic Macular Edema
Topical Proparacaine Eye Drops to Improve the Experience of Patients Undergoing Intravitreal Injections
The specific aims of this study are to compare patient experience with and without a proparacaine drop after povidone iodine.
- Conditions
- Age-related Macular Degeneration, Diabetic Macular Edema, Injection Site, Injection Site Infection
- Trial name
- NCT02951351
- Testing
- Proparacaine, Conjunctival culture
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
Corticobasal Degeneration (CBD), Corticobasal Syndrome (CBS)
4-Repeat Tauopathy Neuroimaging Initiative - Cycle 2
The goal of this study is to identify the most reliable methods of analysis for tracking CBD, PSP, and o/vPSP over time. The results from this study may be used in the future to calculate statistical power for clinical drug…
- Conditions
- Corticobasal Degeneration (CBD), Corticobasal Syndrome (CBS), Cortical-basal Ganglionic Degeneration (CBGD), Progressive Supranuclear Palsy (PSP)
- Trial name
- 4RTNI-2 (NCT02966145)
- Testing
- Observational Study
- Where
- 8 sites in United States, Canada
- Volunteers
- 293 people, healthy volunteers welcome
- Sponsor
- University of California, San Francisco
Disability Physical, Disabilities Multiple
Attitudes Towards Disability of Nursing and Physiotherapy Students
The general objective of this study is to know the attitude towards people with disability of Nursing and Physiotherapy students in the University of Cadiz. This is a descriptive, correlational, transversal and synchronous study.
- Conditions
- Disability Physical, Disabilities Multiple, Disability Hearing, Disability, Vision
- Trial name
- NCT04498637
- Testing
- 'Attitudes towards people with disability Scale'
- Where
- Spain
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- University of Extremadura
Macular Degeneration, Diabetic Retinopathy (DR)
Artificial Intelligence-assisted Diagnosis in Ophthalmology
This is a retrospective, multicenter, observational study designed to develop and validate an artificial intelligence (AI) system capable of detecting and classifying major ophthalmic diseases (glaucoma, cataract, diabetic…
- Conditions
- Macular Degeneration, Diabetic Retinopathy (DR), Glaucoma, Keratoconus
- Trial name
- AI-OPHTH-CR (NCT07497815)
- Testing
- No interventions
- Where
- 2 sites in Costa Rica
- Volunteers
- 15,000 people, healthy volunteers welcome
- Sponsor
- Marisse Masis-Solano
Dementia, Mild Cognitive Impairment
Evaluation of the Effect of Cataract Surgery on Cognitive Function in Very Elderly Patients
The study intends to measure the evolution over time of the cognitive capacity of patients undergoing cataract surgery in relation to the opaque lens removal surgery (cataract) in a population considered to be at risk of…
- Conditions
- Dementia, Mild Cognitive Impairment, Cataract Senile, Cataract
- Trial name
- NCT04047485
- Testing
- Visual Acuity, CAM (Confusion Assesment Method), CATQUEST 9-SF
- Where
- Italy
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University of Modena and Reggio Emilia
Alzheimer Disease, Progressive Supranuclear Palsy
Evaluating Cerebrospinal Fluid Biomarkers in Alzheimer's, Progressive Supranuclear Palsy Subjects, and Controls
This is an experimental medicine study to evaluate the kinetics of cerebrospinal fluid (CSF) biomarkers in subjects with Alzheimer's disease (AD) or progressive supranuclear palsy (PSP) compared to healthy controls using a heavy…
- Trial name
- NCT01348061
- Where
- 3 sites in United States
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- KineMed
Gastroenteritis, Gastrointestinal Diseases
Burden of Recreational Water Illness Due to Exposure to Cyanobacteria and Their Toxins in Freshwater Beaches in Canada
Swimming and other recreational water activities at public beaches are increasingly popular leisure activities among Canadians. However, harmful algal blooms caused by blue-green algae (i.e., cyanobacteria) have also been…
- Conditions
- Gastroenteritis, Gastrointestinal Diseases, Eye Infections, Skin Infections
- Trial name
- NCT06579170
- Testing
- Cyanobacteria exposure during water contact
- Where
- 4 sites in Canada
- Volunteers
- 2,500 people, healthy volunteers welcome
- Sponsor
- Toronto Metropolitan University
Amblyopia, Refractive Errors
The Effect of Early Glasses on the Development of Amblyopia
In a randomized controlled trial, we will establish whether early glasses for high refractive error at age one reduce the development of amblyopia between age one and four.
- Trial name
- EGS (NCT04740593)
- Testing
- Orthoptic care with the prescription of glasses from age 12-18 months onwards, Orthoptic care without the prescription of glasses from age 12-18 months onwards, First measurement only
- Where
- Netherlands
- Volunteers
- 601 people, healthy volunteers welcome
- Sponsor
- Erasmus Medical Center
Amblyopia, Healthy
Amblyopia and Stereoptic Games for Vision
Amblyopia is the most common developmental vision disorder in children, caused by abnormal visual experience in early life, especially a difference in refraction between the eyes, a misalignment of the eye axes, a combination of…
- Trial name
- AMBER (NCT05114252)
- Testing
- Vivid Vision Home, Refractive error correction
- Where
- Switzerland
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Pawel Matusz, PhD
Visual Acuity, Refractive Errors
Pre-symptomatic Screening of Visual Acuity in Pre-school Students
The present research process is a prospective, non-interventional clinical study that will be conducted -under the auspices of the Democritus University of Thrace (DUTH)- in the pre-school students of the city of Alexandroupolis…
- Conditions
- Visual Acuity, Refractive Errors, Low Vision, Vision Disorders
- Trial name
- NCT05835193
- Testing
- Diagnostic Test: Distance Visual Acuity Examination
- Where
- Greece
- Volunteers
- 1,098 people, healthy volunteers welcome
- Sponsor
- Democritus University of Thrace
Cataract, Traffic Accident
Validation of Mesopic and Photopic Contrast Vision Tests With Respect to Nighttime Driving Ability
A) The main purposes of this study are (i) to develop a related virtual reality (VR) environment in order to judge the nighttime driving ability under mesopic and under glare conditions (ophthalmologically healthy subjects and…
- Conditions
- Cataract, Traffic Accident, Vision Disorders, Driving Impaired
- Trial name
- ContrastVal (NCT03169855)
- Testing
- Slit lamp (LOCS III Score)
- Where
- Germany
- Volunteers
- 54 people, healthy volunteers welcome
- Sponsor
- Aalen University
Cannabis Use, Pain, Acute
Eye Tracking as a Biomarker of Cannabis Effects
Biomarkers of recent drug use and intoxication have societal relevance, in that they are used by law enforcement and other agencies to detect drug impairment.
- Trial name
- NCT04100590
- Testing
- Cannabis
- Where
- United States
- Volunteers
- 1 people, healthy volunteers welcome
- Sponsor
- New York State Psychiatric Institute
Vision Disorders
Effect of Lens Presentation on the Clinical Oculomotor Assessment at Near
This study will compare near clinical oculomotor parameters (heterophoria, vergence ranges, AC/A and accommodative findings) measured when lenses and/or prisms are introduced using three different instruments namely: (i) a…
- Trial name
- NCT02679313
- Testing
- Phoropter
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- State University of New York College of Optometry
Blindness
Brain Plasticity of Verbal Memory in the Blind
This study will examine whether blind people develop changes in the brain that improve memory function. Previous studies have shown that blind people, on average, perform better in memory tasks than sighted people.
- Trial name
- NCT00059189
- Testing
- Magstim Rapid Magnetic Stimulator
- Where
- United States
- Volunteers
- 85 people, healthy volunteers welcome
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)